Jean-Luc Botbyl’s review published on Letterboxd:
Finally watched the Ultimate Edition and it's still terrible. Yeah yeah yeah it has a more coherent plot and really makes you wonder how the original cut got a theatrical release. But even with that it only really reaches the base level of competence billion dollar movies tend to hit.
Much like Man of Steel Snyder has a lot of interesting ideas, the problem here is he doesn't engage with any of them. Whole character arcs are given a line or two of lip service and that's the extent of their depth. Any attempt at "themes" is ironically about on par with your average MCU film.
Plus it looks like fucking terrible